package com.neuedu.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter("/*")
public class CornFilter implements Filter {
    public void destroy() {
    }

    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {

        HttpServletRequest request= (HttpServletRequest) req;
        HttpServletResponse response= (HttpServletResponse) resp;
        response.setHeader("Access-Control-Allow-Origin","*");
        response.setHeader("Access-Control-Allow-Credentials","true");
        response.setHeader("Access-Control-Allow-Methods","GET, POST, PUT, DELETE, OPTIONS");
        response.setHeader("Access-Control-Max-Age","3600");
        response.setHeader("Access-Control-Allow-Headers","Origin, X-Requested-With, Content-Type, Accept, token");
        response.setHeader("Access-Control-Expose-Headers","Location");

        chain.doFilter(req, resp);
    }

    public void init(FilterConfig config) throws ServletException {

    }

}
